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The signal frequency analysis 信号频域分析
In pulse code modulation,a spurious signal formed from beats between the signal frequency and the sample frequency. 在脉冲编码调制中,信号频率和取样频率之间的差拍所引起的伪信号。
In pulse code modulation, a spurious signal formed from beats between the signal frequency and the sample frequency. 在脉冲编码调制中,信号频率和取样频率之间的差拍所引起的伪信号。
It has sharp impedance characteristics at desirable frequency and it does affect the signal frequency. 在某一频率区域内，其阻抗值急剧上升，从而在特定的频率内可获得较高的衰减速效果而对信号不产生影响。
If the signal frequency to be measured is low, wide strobe gate is required for high measurement precision. 当被测信号频率较低时，需要很宽的选通门才能得到较高的测量精度。
While turning on off the LCD, in few cases, the signal frequency of the VGA card will affect the LCD and cause interference. 在极少的情况下,萤幕会出现干扰杂纹,。这种情况可能是VGA卡的讯号卡的讯号频率所造成,属于正常现象。
The signal frequency tested is computed according to the wide of the match strobe gate and the pulse number of pulses tested in the match strobe gate. 用频率计内部高频时钟测量匹配选通门宽度，计算被测信号频率。
The signal frequency, the system impedance, power rating, and test fixture/handler compatibility, etc. should all be taken into consideration when choosing cables and connectors. 信号频率、系统阻抗、功率额定值和测试夹具/管理器兼容性，等等，都是选择电缆和连接器时应该考虑的因素。
In order to divide the signal frequency band in detail and raise the frequency distinguish ability, the anti alias filter is made by using a integrated switched capacitor filter. 为了对信号频率段进行细分 ,以提高频率分辨率 ,采用集成开关电容滤波器制作抗混滤波器。
The use of phase-locked loop technology makes the sampling frequency synchronously follow the signal frequency and improves the calculation accuracy of sampling data. 运用锁相环技术使采样频率同步跟踪信号频率,提高采样数据计算的准确性。
I stood watching for the signal to change to green. 我站着等待交通信号转为绿灯。
The periodicity of the phase in the direction finding with interferometer confines the range of the direction finding and the width of the signal frequency. 干涉仪测向中相位的周期性,对测向范围和信号带宽提出了限制,而测向误差和相位误差对测距精度影响较大。
The signal was picked up by a downrange radar station. 该信号被试验飞行方向之内的雷达站收到了。
Everyone uncovered when the signal sounded. 信号响时，人人脱帽致敬。
The train must stop when the signal's red. 信号机是红色时,火车必须停驶。
An Analysis of Noise Bandwidth after Doubling the Signal Frequency 信号倍频后噪声频宽的分析
The President's arrival was the signal for an outburst of cheering. 总统来到爆发一阵欢呼声。
The theoretical and experimental results show that accompanying the increase of the interchannel phase difference,the sound image broadens as the signal frequency band width increases. 理论和实验结果表明，随着通路间相位差的增加，声象随信号频带宽度的增加而展宽。
The equipment picked up the signal from the satellite. 这设备收到了卫星发出的信号。
And it can generator all kinds of basic signals and chirp signal. It has so many functions including display of the signal frequency and the peak value. 该低频虚拟信号源可以产生各种基本信号,扫频信号,具有频率与峰峰值显示等功能。